资料介绍
celluler phoneOverview of the Radio Design of a Cellular Phone
Walid Y. Ali-Ahmad, Ph.D. Wireless Communications Group Maxim Integrated Products Sunnyvale, CA 94086
04/02/02
Walid Y. Ali-Ahmad
C e l l u l a r
1
TALK OUTLINE
! Introduction ! General Block Diagram of a Cellular Phone ! Duplexing in a Cellular Phone System
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FDD vs. TDD ! Full-duplex vs. Half-duplex
! Block Diagram of a Digital Wireless Receiver
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Down-conversion of RF signal ! Channel Selection ! Demodulation to Baseband ! Decoding and Information Recovery
! Block Diagram of a Digital Wireless Transmitter
! Information Coding
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Signal Modulation ! Channel Filtering ! Up-conversion to RF frequency; Amplification
! Low-Power RF Integrated Circuits for Cellular Phone Radio
! Super-heterodyne vs. Direct-conversion Receiver
! Insid